Results 71 to 80 of about 148 (97)

Towards a simple mathematical theory of citation distributions. [PDF]

Springerplus, 2015
Katchanov YL.
europepmc   +1 more source

Maximizing tree harvesting benefit from forests under insect infestation disturbances. [PDF]

PLoS One, 2018
Leite MCA, Chen-Charpentier B, Agusto FB.   +2 more
europepmc   +1 more source

Existence and multiplicity of solutions for nonhomogeneous Klein-Gordon-Maxwell equations

Electronic Journal of Differential Equations, 2015
This article concerns the nonhomogeneous Klein-Gordon-Maxwell equation $$\displaylines{ -\Delta u+u-(2\omega +\phi)\phi u=|u|^{p-1}u +h(x), \quad\text{in }\mathbb{R}^3,\cr \Delta \phi=(\omega +\phi)u^2,\quad\text{in }\mathbb{R}^3, }$$ where ...
Liping Xu, Haibo Chen
doaj  

Existence and multiplicity of solutions to triharmonic problems

Electronic Journal of Differential Equations
The authors consider the triharmonic equation $$ (-\Delta)^3u+c_1\Delta^2 u+c_2\Delta u=h(x)|u|^{p-2} u+g(x,u) $$ in $\Omega$, where $p\in(1,2)$, subject to Navier boundary conditions.
Qifan Wei, Xuemei Zhang
doaj  

Mechanistic modelling of highly pathogenic avian influenza: A scoping review revealing critical gaps in cross-species transmission models. [PDF]

PLoS One
Wang M, Laison EKE, Philippsen T, Ghaemi S, Liu J, Moyles I, Signore A, Ma J, Nasri B.   +8 more
europepmc   +1 more source

Time optimal controls of the linear Fitzhugh-Nagumo equation with pointwise control constraints.

J Math Anal Appl, 2012
Kunisch K, Wang L.
europepmc   +1 more source

Existence of normalized solutions to Kirchhoff-Boussinesq equations in the subcritical and supercritical regime

Electronic Journal of Differential Equations
In this article we study the existence of normalized solutions to the Kirchhoff-Boussinesq equation under the mass constraint $\|u\|_{2}=c$. In the $L^{2}$-subcritical regime, we apply Ekeland's variational principle and concentration compactness method ...
Chunling Tao, Lintao Liu, Kaimin Teng
doaj  

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Structure-preserving integrators based on a new variational principle for constrained mechanical systems

Nonlinear Dynamics, 2023
Peter Betsch, Simeon Schneider, Philipp L Kinon   +2 more
exaly  

On Ekeland's variational principle for interval-valued functions with applications

Fuzzy Sets and Systems, 2022
Nan-Jing Huang, Chuang-Liang Zhang
exaly  

A variational principle for a fractal nano/microelectromechanical (N/MEMS) system

International Journal of Numerical Methods for Heat and Fluid Flow, 2023
Chunhui He
exaly